<template>
  <el-dialog top="6vh" title="新增员工" :visible="showDialog" :before-close="closeDialog" @click.native="showTree = false">
    <!-- 表单 -->
    <el-form ref="addForm" :model="formData" :rules="rules" label-width="120px">
      <el-form-item label="姓名" prop="username">
        <el-input v-model="formData.username" style="width:50%" placeholder="请输入姓名" />
      </el-form-item>
      <el-form-item label="手机" prop="mobile">
        <el-input v-model="formData.mobile" style="width:50%" placeholder="请输入手机号" />
      </el-form-item>
      <el-form-item label="入职时间" prop="timeOfEntry">
        <el-date-picker v-model="formData.timeOfEntry" style="width:50%" placeholder="请选择入职时间" />
      </el-form-item>
      <el-form-item label="聘用形式" prop="formOfEmployment">
        <el-select v-model="formData.formOfEmployment" style="width:50%" placeholder="请选择">
          <el-option v-for="item in employeeMenu.hireType" :key="item.id" :label="item.value" :value="item.id" />
        </el-select>
      </el-form-item>
      <el-form-item label="工号" prop="workNumber">
        <el-input v-model="formData.workNumber" style="width:50%" placeholder="请输入工号" />
      </el-form-item>
      <el-form-item label="部门" prop="departmentName">
        <!-- 控制部门只能选择 不能输入
            disables 禁用
            readonly 只读
            v-model 改成 :value绑定   input是一个受控组件
         -->
        <el-input
          v-model="formData.departmentName"
          style="width:50%"
          placeholder="请选择部门"
          @click.native.stop="showDepts"
        />
        <!-- 部门列表树形数据 -->
        <div v-show="showTree" class="treeBox">
          <el-tree
            v-loading="loading"
            :data="depts"
            :props="{label: 'name'}"
            @node-click="handleClick"
          />
        </div>
      </el-form-item>
      <el-form-item label="转正时间" prop="correctionTime">
        <el-date-picker v-model="formData.correctionTime" style="width:50%" placeholder="请选择转正时间" />
      </el-form-item>
    </el-form>
    <!-- footer插槽 -->
    <template v-slot:footer>
      <el-button @click="closeDialog">取消</el-button>
      <el-button type="primary" @click="addEmployee">确定</el-button>
    </template>
  </el-dialog>
</template>

<script>
import { reqGetDepartments } from '@/api/departments'
import { tranListToTreeData } from '@/utils'
import { reqAddEmployee } from '@/api/employees'
import employeeMenu from '@/constant/employees'
export default {
  props: {
    showDialog: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      formData: {
        username: '', // 用户名
        mobile: '', // 手机号
        formOfEmployment: '', // 聘用形式
        workNumber: '', // 工号
        departmentName: '', // 部门
        timeOfEntry: '', // 入职时间
        correctionTime: '' // 转正时间
      },
      rules: {
        username: [
          { required: true, message: '用户姓名不能为空', trigger: ['blur', 'change'] },
          { min: 1, max: 4, message: '用户姓名为1-4位', trigger: ['blur', 'change'] }
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: ['blur', 'change'] },
          { pattern: /^1[3-9]\d{9}$/, message: '手机号格式不正确', trigger: ['blur', 'change'] }
        ],
        formOfEmployment: [
          { required: true, message: '聘用形式不能为空', trigger: ['blur', 'change'] }
        ],
        workNumber: [
          { required: true, message: '工号不能为空', trigger: ['blur', 'change'] }
        ],
        departmentName: [
          { required: true, message: '部门不能为空', trigger: ['blur', 'change'] }
        ],
        timeOfEntry: [
          { required: true, message: '请选择入职时间', trigger: ['blur', 'change'] }
        ]
      },
      depts: [], // 树形数据部门列表
      showTree: false, // 控制部门列表树形数据布尔值
      loading: false, //  控制树形数据加载状态的布尔值
      employeeMenu
    }
  },
  methods: {
    closeDialog() {
      this.$emit('update:showDialog', false)
      // 重置表单和校验
      this.$refs.addForm.resetFields()
    },
    // 点击部门选择获取部门列表方法
    async showDepts() {
      // 数据准备加载开启loading
      this.showTree = !this.showTree
      this.loading = true
      const { data: { depts }} = await reqGetDepartments()
      this.depts = tranListToTreeData(depts, '')
      // 数据加载完毕后关闭loading
      this.loading = false
    },
    // 树形节点被点击时回调
    handleClick(data) {
      // 1. 如果没有子部门才能被选中
      if (!data.children.length) {
        // 2.将部门名称赋值给表单双向绑定的departmentName字段
        this.formData.departmentName = data.name
        // 3. 隐藏部门列表
        this.showTree = false
      }
    },
    // 新增员工
    addEmployee() {
      // 1.预校验
      this.$refs.addForm.values(async boo => {
        if (!boo) return
        // 2.发送请求
        const { message } = await reqAddEmployee(this.formData)
        // 3.提示用户
        this.$message.success(message)
        // 4.关闭对话框
        this.closeDialog()
        // 5.通知父组件重新渲染
        this.$emit('reload')
        // console.log(this.$parent)// 找的是父组件
      })
    }

  }
}
</script>

<style lang="scss" scoped>
.treeBox{
  position: absolute;
  left: 0;
  top: 40px;
  z-index: 999;
  border: 1px solid #ccc;
  width: 50%;
  border-radius: 5px;
  overflow: hidden;
}
</style>
